Quadros Lydia Shobha, Bhat Nandini, D'Souza Antony Sylvan
Department of Anatomy, Kasturba Medical College, Manipal University, Madhavnagar, Manipal, 576104 Karnataka, India.
Malays J Med Sci. 2015 May-Jun;22(3):65-7.
After arising from the brachial artery in the cubital fossa the ulnar artery usually passes deep into the superficial flexor muscles of the forearm. In the lower two-thirds, it typically follows a sub-fascial course. In the present case, during a routine undergraduate course dissection of a cadaver, it was found that the ulnar artery arose normally as a terminal branch of the brachial artery in the cubital fossa, followed a sub-fascial course by lying superficial to the flexor muscles then completed the superficial palmar arch in hand. This artery gave only minute muscular branches in the forearm. Moreover, the main branches that usually arise from the ulnar artery were given off by the radial artery. This type of variation is of importance for both the clinicians and surgeons due to its vulnerability to injuries and of academic interest for anatomists.
尺动脉在肘窝处自肱动脉发出后，通常穿入前臂浅屈肌的深层。在其下三分之二的行程中，它通常走行于筋膜下。在本病例中，在一次本科常规尸体解剖过程中发现，尺动脉正常发自肘窝处的肱动脉终支，走行于筋膜下，位于屈肌浅面，然后在手部形成掌浅弓。该动脉在前臂仅发出细小的肌支。此外，通常由尺动脉发出的主要分支由桡动脉发出。这种变异类型因其易受伤性对临床医生和外科医生都很重要，并且对解剖学家具有学术研究价值。
